CN106102930A - There is the fluid distribution equipment of pre-compression outlet valve - Google Patents
There is the fluid distribution equipment of pre-compression outlet valve Download PDFInfo
- Publication number
- CN106102930A CN106102930A CN201580008680.4A CN201580008680A CN106102930A CN 106102930 A CN106102930 A CN 106102930A CN 201580008680 A CN201580008680 A CN 201580008680A CN 106102930 A CN106102930 A CN 106102930A
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- Prior art keywords
- valve
- fluid distribution
- piston chamber
- piston
- pressure
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- 238000009826 distribution Methods 0.000 title claims abstract description 79
- 239000012530 fluid Substances 0.000 title claims abstract description 67
- 230000006835 compression Effects 0.000 title description 10
- 238000007906 compression Methods 0.000 title description 10
- 230000037452 priming Effects 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 239000000872 buffer Substances 0.000 claims description 20
- 238000009423 ventilation Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 5
- 230000001965 increasing effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 description 11
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 239000007921 spray Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 4
- 239000004479 aerosol dispenser Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1061—Pump priming means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1009—Piston pumps actuated by a lever
- B05B11/1012—Piston pumps actuated by a lever the pump chamber being arranged substantially coaxially to the neck of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1009—Piston pumps actuated by a lever
- B05B11/1012—Piston pumps actuated by a lever the pump chamber being arranged substantially coaxially to the neck of the container
- B05B11/1014—Piston pumps actuated by a lever the pump chamber being arranged substantially coaxially to the neck of the container the pump chamber being arranged substantially coaxially to the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
- B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Safety Valves (AREA)
- Details Of Reciprocating Pumps (AREA)
- Devices For Dispensing Beverages (AREA)
Abstract
The present invention relates to fluid distribution equipment, this fluid distribution equipment includes: piston chamber；Piston, it is movably to pressurize liquid to be allocated in piston chamber；Nozzle, it has the handling capacity defining, for distribution liquid；Outlet valve, it has the minimum defining and opens pressure, is arranged between piston chamber and nozzle；And priming valve, it is used for starting equipment.Priming valve can be mechanically exercisable and can be arranged on piston or in piston.Fluid distribution equipment may also include control member, and this control member can and this control member prominent from the end wall of piston chamber be arranged to when terminating or be at the end of its stroke, from closed position, priming valve be moved to open position close to its stroke when moveable piston.Outlet valve can be configured to minimize it and opens the difference between pressure and its closing presure.Outlet valve can include that dome and this dome can have the rigidity changing in radial directions.
Description
Technical field
The present invention relates to distribution technique, and particularly various types of improved injectors or foam dispenser,
Wherein output pressure can be accurately controlled and thus droplet size can be accurately controlled, wherein injector can have
Effect ground is started to remove air from pumping system, and wherein outlet valve most preferably performs with minimum hysteresis.
Especially, the present invention relates to fluid distribution equipment, this fluid distribution equipment includes: piston chamber；Piston, it is at piston
Indoor are moveable, to pressurize liquid to be allocated；Nozzle, it has the handling capacity (throughput) defining,
For distributing liquid；Outlet valve, it has the minimum unlatching pressure defining, is arranged between piston chamber and nozzle；And start
Valve, it is used for starting equipment.Such fluid distribution equipment is public in the PCT/US2013/068825 of application earlier of applicant
Opening, this application was published as WO 2014/074654 Al later.
Background of invention
The fluid distribution equipment of such as spray bottle is well-known.Some provide precommpression to guarantee to pull trigger
The injection of Shi Qianglie and prevent from revealing.Injector and foam maker can be easily manufactured and fill, and are frequently used for
Distribute for example all types of cleaning agents.But, in many cases it is preferred to be need not to pump distributing equipment continuously to push away
Go out to distribute liquid.But, after user pulls trigger or otherwise activates shower nozzle, spray or foam can be made
Substantially continuous would is that more convenient.For example, if by activating shower nozzle, it is possible to obtain certain fair amount per minute
The continuous injection of number of times, then many users will find that it is optimal like that.
The one group of distributing equipment providing injection continuously is aerosol dispenser, and this aerosol dispenser is such as used for cooking spray
Mist agent is (for example,), insecticide (for example,), lubricant (for example,) and other purposes many.Gas
Spray apparatus accommodates liquid or other distribution thing (dispensate) under stress so that when user (for example, by pressing the button)
During activation equipment, the content of pressurization is allowed to effusion.But, there is significant environmental hazard and packaging defect in gas blowout device,
This is owing to using the necessity of gas blowout device propellant and the other necessity pressurizeing it to cause in gas blowout device
's.This need to fill under stress such equipment, use enough hard to bear the packaging of pressure and to take steps with really
Protect propellant in the lifetime of tank or container, keep consistent pressure.Such condition typically requires the non-ep-type material of use
And dispensing.
In addition, the gas blowout device of routine sprays discontinuously, unless user is maintained at its finger on button.Due to people
Generally using the forefinger of their strong hand to promote aerosol container, therefore this requirement hinders them and utilizes that hand to spraying
The surface/object that agent and/or spray are pointed to carries out the ability of any process, make cleaning be difficulty etc..Thus, user's quilt
Urgent such as cleaning agent is sprayed from the teeth outwards, then stop injection, then wipe against or scouring etc..
Recently, floor-cleaning product has occurred replacing mop.When user is along floor or surface pushing equipment, permitted
Many floor-cleanings product attempts from one or more nozzles injection cleaning fluid or floor protecting product.Some in these equipment
Utilize by the motor driving pump of power line or battery operation.But, such equipment is typically unstable, and not lasting.
Or for example, battery be floor cleaning equipment power in the case of, any serious current drain be required for large-sized battery and
Need the frequent changes of large-sized battery, this not still environment unfriendly, heavy and also be expensive.
Finally, although conventional precommpression injector controls minimum output pressure, but it controls maximum never in any form
Output pressure.Conventional injector under low pressure starts distribution.During a trigger stroke, pressure rises to surge pressure.
Liquid is forced through aperture, but a part for only liquid can pass through nozzle, so pressure will be in injector inner accumulated.Towards punching
The end of journey, fluid pressure drops to zero.Low-pressure at the beginning and end of stroke thus when conventional injector pressure
Bigger, inconsistent droplet is produced at the right side of half interval contour and left side.
When fluid pressure is in predetermined pressure, precommpression injector starts injection.This predetermined pressure is known as outlet
" the unlatching pressure " of valve.As noted, during a trigger stroke, pressure is raised to surge pressure.When pressure drops to
During predetermined pressure (closing presure of outlet valve), distribution stops immediately.Because pressure is higher, therefore in precommpression injector
Droplet size at the beginning and end of distribution stroke is less.Because same amount of liquid was divided within the shorter time
Join, so the surge pressure producing even more little droplet is also high than the surge pressure of conventional injector.Therefore, gathered bigger
Pressure.Thus, relative to conventional injector, the pressure differential across pressure time curve still exists and even more big.It is only
It is converted to higher pressure limit.Thus, the difficulty of standard precommpression injector includes, for example, (1) droplet size spreads relatively
Width, and (2) droplet size is too little.
In addition, user wants to be injected in " directly effect " type that he or she stops terminating immediately when triggering wherein
In injector, it is desirable to pre-compression outlet valve has two metaactions (binary action), and i.e. it effectively turns off immediately.
In order to realize this point, the pressure differential opened between pressure and closing presure of outlet valve is most preferably little.But, generally, feelings
Condition is really not so.
In order to control the outlet pressure of droplet, and also in order to allow injection continuously between trigger stroke (thus imitative
The operating function of effect aerosol injector), buffer can be applied in combination with precompression valve.This causes accurate outlet pressure
Band, and make the time interval that the top half of pressure-time curve moves between down stroke, as at above-cited WO
2014/074654 Al describes in detail.But, when implementing such combination, set the precompression valve of minimum output pressure
May need significantly to open pressure.In order to need sufficiently to compress it to reach by the air in outlet valve evacuating pump
Opening pressure to outlet valve, this makes starting become problem.If having many inner passages, such as embed around internal
Buffer those passages of fluid path and other passages incompressible are provided, then do not need by opening precommpression
The starting system that valve goes out air entrapment via normal injection outlet channels discharge is desired.
Summary of the invention
According to an aspect of the invention, it is provided the fluid distribution equipment of the above-mentioned type, wherein priming valve is mechanically
Exercisable and be arranged on piston or in piston.Even if the air in pump can not be pressurized to the unlatching pressure of outlet valve,
The mechanically actuated of priming valve allows also to pump and effectively starts, and arrangement on piston or in piston for the priming valve allows easily simultaneously
Air is discharged from piston chamber.
In one embodiment, the control member that fluid distribution equipment is additionally included in piston chamber, this control member quilt
It is arranged to when moveable piston terminates or be in when its stroke terminates place to move to priming valve from closed position close to its stroke
Open position.By this way, when air is fully pressurized, priming valve is only opened at the end of stroke.
When control member highlights from the end wall of piston chamber, this operation can realize in mode simple in structure.
In order to allow air promptly and to be effectively discharged out from piston chamber, fluid distribution equipment can include multiple operation structure
Part.
In structure, the embodiment of simple priming valve includes hermetic unit and actuation part, this hermetic unit closed piston
In aperture, actuation part is connected to hermetic unit and is arranged to coordinate with control member.By the aperture in piston
Distribution air obtains relatively short flow passage.
When actuation part is engaged by control member, hermetic unit can be deformable together with actuation part.Variable
The priming valve of shape ratio is hinged or otherwise moveable valve manufacture is easier to and operation is simpler.
In order to allow during starting, substantially the whole of air is from device clear, and end wall and/or the piston of piston chamber can
Including towards the air flowing access of priming valve.
In an embodiment of the fluid distribution equipment of the present invention, priming valve may be disposed to when the pressure in piston chamber
Bias towards open position when exceeding predetermined value.By this way, priming valve is also used as pop off valve, when in piston chamber
Pressure when reaching very high value pop off valve will open.
When hermetic unit is away from the end wall orientation of piston chamber, this can realize in mode simple in structure.
In another embodiment of the fluid distribution equipment of invention, priming valve is arranged through the pressure in piston chamber
Towards closed position.In this way it is possible to prevent the properly functioning period liquid at equipment from being leaked by priming valve.
This leakage prevention can by make hermetic unit towards piston chamber end wall orientation realize.
In order to obtain uniform pressure distribution and thus obtain consistent discharge mode, piston chamber can be cylindrical,
Piston can have circular periphery, and priming valve can be annular, and wherein the hermetic unit of priming valve can be by its periphery
Marginal portion is formed.
In such fluid distribution equipment, then actuation part can include concentric with hermetic unit and to have ratio close
The annular edge edge of the little diameter of envelope part.
In this arrangement, when priming valve also serves as excess pressure valve, hermetic unit and actuation part can have generally flat
The orientation of row.
Alternately, in the case of priming valve is arranged to when equipment is properly functioning the liquid leakage preventing pressurization,
Hermetic unit and actuation part can have generally contrary orientation.
In order to allow air quickly and easily to discharge from piston chamber during starting, fluid distribution equipment can also wrap
Include the reflux opening in the sidewall of piston chamber, and piston can include the first perimeter and the second perimeter, first
Perimeter is used for sealing the part between piston and piston chamber's end wall of piston chamber, the second perimeter and first week
Limit sealing is spaced apart so that when piston is at the end of its stroke or close at the end of stroke, reflux opening is positioned at first
Between perimeter and the second perimeter.By this way, the space between the first sealing and the second sealing can
It is used as to collect and discharge the air treated from device clear.
When container is notThe container of type but during conventional vessel, fluid distribution equipment is additionally may included in piston
Ventilation orifice in the sidewall of room, and when piston is at the end of its stroke or close at the end of its stroke, first week
Limit sealing and the second perimeter can be located between ventilation orifice and piston chamber's end wall.By this way, container can lead to
Wind in case formed (locally) vacuum, and when sealing be vented opening pass through when, ventilation orifice can be at the knot of stroke
Open at bundle.
According to another aspect of the present invention, it is provided that fluid distribution equipment, wherein outlet valve can be configured to minimum
Change it and open the difference between pressure and its closing presure.Hysteresis is minimized by this way.
To this end, outlet valve can include that dome and this dome can have the rigidity changing in radial directions.
In an embodiment of this fluid distribution equipment, dome valve can have the inner flexible portion surrounding its center
And outer rigid portion.This specific Stiffness Distribution is thought to provide favourable valve characteristic.
When dome valve in inner flexible portion be the thinnest, there is radius R1, and as radius increaseds to over R1When
When this dome valve becomes thicker, this Stiffness Distribution can be obtained by simple mode.
In order to allow fluid distribution equipment to imitate the characteristic of aerosol dispenser, fluid distribution equipment can also include arranging
Buffer between piston chamber and outlet valve.
When equipment also includes the container for liquid to be allocated, when container is in fluid communication with piston chamber by inlet valve, obtain
Obtained complete ready-to-use fluid distribution equipment.In this embodiment, various functional elements can be arranged in distribution
On head or be integrated in dispensing head, this dispensing head may be installed on container.In a modification, one of functional element or
Multiple can be arranged on container or integrated thus provide so-called " locking " feature in a reservoir, this feature prevents applicant
Dispensing head be retrofitted to the container from competitor.
Brief description
With reference to appended accompanying drawing, illustrate the present invention, in the accompanying drawings, similar element by means of many exemplary
By increasing the reference number mark of " 100 ".In the drawings:
Fig. 1 shows the partition characteristic of various types of injector, shows time dependent pressure,
Fig. 2 shows the similar curve for distributor characteristic, including the preferred scope of pressure,
Fig. 3 is the hydraulic scheme representing the fluid distribution equipment according to embodiment of the present invention,
Fig. 4 is the perspective view of the physical embodiment of the fluid distribution equipment of Fig. 3, without reservoir or container,
Fig. 5 is the longitdinal cross-section diagram on the direction of arrow V-V in the diagram,
Fig. 6 is the longitudinal cross-section with the container with liquid to be allocated for the low portion of the equipment of Fig. 5, and wherein equipment is shown
Source in prestarting original state,
Fig. 7 is longitdinal cross-section diagram that is corresponding with Fig. 5 but that show the equipment at the end of pump stroke, and wherein it touches
Send out actuator to be pressed and its piston is in its lowermost position,
Fig. 8 is view that is corresponding with Fig. 6 but that show the piston being in during starting in its foot part, this
When still have some air to escape,
Fig. 9 is the perspective view of the priming valve using in the fluid distribution equipment of Fig. 4 to Fig. 8,
Figure 10 shows the detailed view of the magnification ratio of the deformation of priming valve during starting,
Figure 11 is the cross section perspective detailed view of the magnification ratio of the bottom of piston chamber and inlet valve,
Figure 12 is the piston of the alternative embodiment of carrying priming valve and the piston with alternative control member
The cross-section detail view of room,
Figure 13 corresponds to the cross-section detail view of Fig. 6 and Fig. 8, shows and the routine during distribution must ventilated
One-wall vessel combination equipment,
Figure 14 shows the distribution of the alternative embodiment of the fluid distribution equipment of the line XIV-XIV intercepting along Figure 15
The longitdinal cross-section diagram of head,
Figure 15 is the longitdinal cross-section diagram of the alternative embodiment of the line XV-XV intercepting along Figure 14,
Figure 16 is the detailed view of the part by the round XVI instruction in Figure 15, and wherein piston was in rising before starting
Position,
Figure 17 is in the view of the piston at its its lowermost position during corresponding to Figure 16 but showing starting,
Figure 18 is corresponding with Figure 17 and shows the view how container can ventilate,
Figure 19 is the detailed view at the top of the distributing equipment as shown in Fig. 5 and Fig. 7, and wherein outlet valve is closed,
Figure 20 is corresponding with Figure 19 but shows the view that outlet valve is opened and liquid is being allocated,
Figure 21 is in the detailed view of the alternative embodiment of the outlet valve of Figure 19 of closed position,
Figure 22 is corresponding with Figure 21 but illustrates valve view in an open position, and
Figure 23 and Figure 24 is view that is corresponding with Figure 21 and Figure 22 but that show the further embodiment of outlet valve.
Detailed Description Of The Invention
In an exemplary embodiment of the present invention, it is proposed that various Novel spraying emitters and related distributing equipment.Shown
Shower nozzle generally can work together with the bottle of standard or reservoir and utilize the applicant to develop and " inner bag " that provide or " hold
Device inner pressurd vessel "Technical work." inner bag "Technology causes internal container to shrink around product, thus eliminates
Headroom in internal container or air bubble.BecauseIt in technology, is applied to the pressure of inner pouch by pressurizeing
Medium (atmospheric pressure usually ventilating between described internal container and external container) causes, and leads to so not needing liquid container
Wind.Certainly, existIn system whenever from inner pouch distribution product, inner pouch is distributed with product and is retracted to product
Residual volume, then must counterpressure in the gap between external container and internal container.Counterpressure can be no matter big
Dislocation medium (displacing medium) (such as, such as air) is for example used to carry out under atmospheric pressure or higher pressure.Logical
Cross and make the gap in the somewhere between internal container and external container lead to surrounding air, for example, byThe end of container
There is provided air vent in portion or in any other convenient position of external container, counterpressure can easily be accomplished.One
In a little exemplary, such air vent can move to shower nozzle itself.
At the output pressure of various types of injectors with have close relationship between the delivery time.In conventional injection
In device, there is the distribution of output pressure, be substantially Gaussian curve (Figure 1A), and the higher droplet size of pressure is less.Thus,
In the pressure curve of conventional injector, have by the distribution of the droplet size shown in irregular some region.Conventional injector
Not there is enclosed valve.When piston activated, injector immediately begins to distribution.Thus, activated pump by user lentamente and lead
Cause big droplet or drop, and fluid pressure is low.On the other hand, fast actuating piston can reduce the amount of big droplet,
This is because pressure rises quickly then towards surge pressure.Thus, in conventional injector, performance is highly dependent on operation
The user of injector or user handle the behavior of injector.
Precommpression injector has the different curve of output with different pressure distribution and droplet size, as by striped
(Figure 1B) shown in region.It should be noted that the large range of pressure having from the output of precommpression injector.Precommpression is sprayed
Emitter has normally closed valve.Thus, outlet valve is only opened under a predetermined.Row between the inlet valve of pump and outlet valve
Amount (displacement volume) vanishing during compression stroke.If discharge capacity is not zero, then pump can not start.Work as work
When plug is activated by user, injector only starts distribution when fluid pressure exceedes the unlatching pressure of outlet valve.Because pump is relatively
Starting distribution under high pressure, therefore slowly activating pump will not provide drop.Compared with in the case of conventional injector, in advance
In compression injection device, performance less depends on the operation behavior of user.
It is also differs from standard precommpression injector, there is the pressure time curve of the precommpression injector of buffer.
In the case of at non-buffered precommpression injector, buffering precommpression injector has normally closed valve.Therefore, go out
Mouth valve is only opened under a predetermined.But, also there is buffer.The overflow of buffers store liquid, thus prevent as at tool
Precompression valve is had not have the surge pressure in the system of buffer.The parts of the synchronization of buffering precommpression injector determine defeated
Go out performance.User rapidly or slowly triggers on output impact very little, this is because pressure is equalized by buffering.Buffering
The performance of precommpression distributor thus the operation behavior that minimally depends on user.Because surge pressure is overflow by buffering
Stream is terminated, and thus the pressure at the top of precommpression injector pressure curve is cut off (Fig. 1 C) at maximum,
So having much narrower output pressure scope.By buffering overflow, this reduces as by the pressure model represented by regular point
Enclose/droplet size distribution.And therefore for buffering precommpression injector, output pressure is at the minimum pressure and of precompression valve
Extending in arrowband between big pressure, maximum pressure is in the case of the direct embodiment stopping (as described below)
The function of the pressure being produced by buffer during continuous stroke or during a single stroke.
Fig. 2 shows the further details of the correlation between the element of buffering precommpression injector.As bigger
Droplet size and be available the reason that maximum allocated pressure, as the pressure of opening of the outlet of the reason that less droplet size
In spreading pressure limit/droplet size, the governing factor limiting is set.The right side of Fig. 2 shows can pass through specification or logical
User or the desired stress level/droplet size being provided by client are provided.Provide desired stress level/droplet size
After, buffering precommpression injector can be formed, the output of this buffering precommpression injector is centered on desired pressure size and from p
Subtract Δ ρ and p and add the pressure of Δ ρ extension or the scope of droplet size.It is opening or opening pressure p of outlet valve that p subtracts Δ ρOpen, and
And p adds the maximum allocated pressure p that Δ ρ is under certain one-stroke speedMaximum。
Fig. 3 is the schematic hydraulic figure of fluid distribution equipment 1 in accordance with an exemplary embodiment of the invention.In this signal
In figure, start from the bottom of figure it can be seen that be filled with reservoir or the container 3 of liquid L to be allocated.This can be
The reservoir of container (container-in-a-bottle) in bag (bag-in-a-bottle) or bottle in the bottle of type, as above
Described.There is inlet valve 16, this inlet valve 16 is check valve, and ought be produced by motion in piston chamber 4 for the piston 5
During negative pressure (under-pressure), this inlet valve 16 allows liquid L to enter piston chamber 4 from container 3.By inlet valve 16, liquid
Body L enters piston chamber 4, and is pushed upwardly in surge chamber by check valve 31.Liquid L flows through buffer 19, and
And if have enough pressure to produce, then push outlet valve 7 open, this allow liquid pass through exit passageway 49 reach nozzle 6.Also should note
Meaning, shows the priming valve 40 that will be described in further derail below in the left side of inlet valve 16.
Fig. 4 and Fig. 5 depicts exemplary sparger engine in accordance with an exemplary embodiment of the invention and they are various
The part supplemented.It should be noted that term " injector engine " and " dispensing head " can run through this description and be interchangeably used, with
Define the combination allowing the functional element from container allocation for the liquid.
(this fluid distribution equipment 1 is the thing of hydraulic scheme of Fig. 3 for fluid distribution equipment 1 as shown in Figures 4 and 5
Reason embodiment) include dispensing head 2 and be filled with the container 3 of liquid L to be allocated.As described above, container can beClass
The container (Fig. 6, Fig. 8) of type or the one-wall vessel (Figure 13) of routine.Dispensing head 3 includes piston chamber's the 4th, piston 5 and nozzle 6, piston 5
Being reciprocal moveable in piston chamber 4, with to liquid L pressurization to be allocated, nozzle 6 has the handling capacity of restriction, for dividing
The handling capacity of the definition of dosing body L.The minimum with definition restriction opens pressure POpenOutlet valve 7 be arranged in piston chamber 4 and spray
Between mouth 6.Piston chamber 4 is formed at the tubular lower end portion of housing 8, and this housing 8 part extends in container 3.Housing 8 also includes
Annular collar 9, this annular collar 9 is for example by means of being connected together or the threaded neck that dispensing head 2 is connected to container 3
10.Have the tubular projections 11 for receiving dip-tube (not shown) in the foot end of housing 8, dip-tube can be used for
The position of the near-bottom from container 3 for the liquid L is transported to piston chamber 4.Tubular projections 11 is connected to be formed at piston chamber 4
Entrance opening 12 in diapire 13.This diapire 13 has the profile being bent upwards surrounding central recess 14, defines inserting of valve seat
Enter part 15 and inlet valve 16 is contained in this central recess 14.
It should be noted that as used herein term " upwards (up) ", " top (topmost) (upper (most)) " and
" top (top) " and " downward (down) ", " bottom (foot) (lower (most)) " and " bottom (bottom) " refer to
The illustrative orientation of fluid distribution equipment 1, wherein dispensing head 2 is illustrated to be arranged on the top of container 3, and wherein nozzle cloth
Put the end relative with container 3 at dispensing head 2.
Upwardly extending from lasso 9, housing 8 includes support frame 17, this support frame 17 with act on support and guide point
Join the pillar (backbone) of the movable part of 2.These movable parts include at its underpart end loading piston 5 with at it
The sliding part 18 of outlet valve 7 and nozzle 6 is carried at upper end.In the illustrated embodiment, sliding part 18 is hollow
And accommodate the buffer 19 being discussed below.The movable part of dispensing head 2 also includes actuator 20, in embodiment illustrated
In, actuator 20 is the trigger being pivotally supported by support frame 17.
In this embodiment, trigger 20 includes extending two sidewalls 21 on the relative side of sliding part 18, and
Each sidewall has extension 22, and extension 22 includes the profiling coordinating with the pivotal axis (not shown here) on sliding part 18
Part, and extension 22 also carries biasing member 23.In this embodiment, each biasing member 23 has the flexure of bending
The form of spring, an end 24 of the flexion springs of this bending is attached to extension 22, and relative end freely 25 by
Retrain to bend spring 23 and reloading spring 23 from the prominent block 26 of housing 8.Trigger actuator 20 sidewall 21 it
Between formed opening 27, this opening 27 allow trigger actuator 20 freely pivot and do not interfere with nozzle 6 or outlet valve assembly 47.
As described above, sliding part 18 is hollow, and place has entrance opening 28 and has at its top bottom it
There is exit opening 29.Entrance opening 28 connects with the central opening 30 in piston 5, and this central opening 30 is by check valve or check-valves
31 close.Exit opening 29 is closed by outlet valve 7.In the embodiment shown in the drawing, buffer 19 is the flexible pouch filling gas,
The internal pressure of this flexible pouch is higher than the unlatching pressure of outlet valve 7.Liquid can be in the inner surface being formed at sliding part 18
Groove (not shown here) flow to export 29 from entrance 28.Fluid pressure in distributing equipment 1 rises to generally
Higher than when opening pressure (this be for example cause due to actuating trigger repeatedly more higher than the liquid that nozzle 6 can distribute come
From the liquid supply of piston chamber 4), buffer 19 provides space to accommodate by being compressed between the wall of bag and sliding part 18
Many liquid.
The foot part 32 defining piston chamber 4 of housing 8 has the core 33 of the receiving sliding part 18 than housing 8
The little diameter of diameter.Foot part 32 and core 33 are connected by conical section 34.Piston 5 has similar structure
Type, it has foot part the 35th, the tapered intermediate portion 36 and of diameter that is prominent from sliding part 18 and that have opposite, narrow
Upper part 37, this topmost part is surrounded sliding part 18 and has at the diameter of core 33 of housing 8 and sliding part
Diameter between the overall diameter of 18.Piston 5 is provided with outwardly top edge 38 and lower edge 39.These are flared out
The inwall of edge the 38th, 39 corresponding parts along housing 8 be hermetically slidably, in order to form the top seal of piston 5
Portion and lower seal portion.
According to the important aspect of the present invention, fluid distribution equipment 1 includes the priming valve 40 being spaced apart with outlet valve 7.Rise
Dynamic valve 40 is arranged on piston, in this embodiment, be arranged in piston 5 on the side of the diapire 13 of piston chamber 4.Start
Valve 40 is that machinery is exercisable, i.e. its operation is unrelated with the pressure of the air being present in equipment 1.In embodiment illustrated
In, priming valve 40 is operable to by the control member 41 being arranged in piston chamber 4.Control member 41 can be arranged on living
Protuberance on the diapire 13 of plug room 4.In this embodiment, priming valve 40 is normally biased to closed position so that priming valve
The closedown of 40 does not needs the effect from control member 41.Priming valve 40 will be opened when being engaged by control member 41, and connect
Unification end will turn off.
In the embodiment shown in the drawing, priming valve 40 is elastically deformable, and is deformed by control member 41 when it
When open.Priming valve 40 is formed by the annular construction member with core 42, and this core 42 is snugly fit inside piston 5
In annular groove 43 in Di Bu.Priming valve 40 has neighboring 44, and this neighboring 44 is relative flexibility, and this is outer
Circumferential edges 44 seals against the inner surface 45 of the periphery wall 48 of piston 5.When control member 41 engages priming valve 40, this flexibility is close
Envelope part 44 is elastically deformable.Owing to it is elastic, terminating with the joint one of control member 41, hermetic unit 44 returns to
Its initial position.It should be noted that control member 41 does not directly engage hermetic unit 44, in order to avoid to this hermetic unit 44
Destroying, this destruction may cause leakage.But, control member 41 engages the actuation part 46 (Figure 10) of priming valve 40.This actuating
Part 46 is formed by the annular edge edge radially-inwardly arranged from outside sealing the margin 44.
In an embodiment (Fig. 6 to Figure 10), actuation part 46 and hermetic unit 44 have generally contrary determining
To.Although in order to smoothly engage with the control member 41 projecting upwards from end wall 13, actuation part 46 is inclined upwardly, and seals
Part 44 is downward-sloping almost parallel with the outwardly lower edge 39 of piston 5.By this way, hermetic unit 44 leads to
Cross the pressure in piston chamber 5 and be always biased to closed position.This arrangement prevents air and liquid under any circumstance leaking.
Alternately, hermetic unit 44 and actuation part 46 can be generally parallel to one another or even each other in a straight line
(Figure 12).Here actuation part 46 tilts again up, and hermetic unit 44 is also inclined upwardly equally.By this way, when
When pressure in piston chamber 4 exceedes predeterminated level, hermetic unit 44 can be urged away from the inwall 45 of piston 5.Thus, start
Valve 40 also serves as pop off valve.It is apparent that the flexibility of hermetic unit 44 should be so selected, make priming valve 40 will divide at liquid
The properly functioning period of arranging standby 1 remains turned-off, and leaks to prevent liquid from passing through priming valve 40, and this leakage will affect equipment 1
Operation.Only when reaching potential critical pressure in piston chamber 4, the hermetic unit 44 of priming valve 40 by surrender and allows liquid
Effusion.In this embodiment, there are two control members 41 on the relative side being arranged in entrance opening 12.Additionally, this
A little control members have the geometry slightly different with the single operation component 41 of other embodiments.
Priming valve 40 cuts out the aperture 50 being formed in piston 5.This aperture 50 is led on the peripheral sidewall 48 of piston 5, with
Just forming the flow passage for air between the space 51 between piston chamber and piston 5 and housing 8, this space 51 is with top
Sealing 38 and lower seal portion 39 are boundary.Opening 52 is formed in housing 8 and empty with the top above liquid L in container 3
Between 53 directly connect.
At the end of piston is in its stroke or close at the end of its stroke, in order to allow all remaining air to arrive at work
Aperture 50 in plug 5, the 54th, groove or recess 55 can be formed in the diapire 13 of piston chamber 4 and/or be formed at and define valve seat
In insert 15 (Figure 11).By these grooves the 54th, 55, air can flow towards control member 41 and from here along rising
The aperture 50 that the hermetic unit 44 of the deformation of dynamic valve 40 flow in piston 5.
In the alternative embodiment of priming valve, the aperture 50 in piston 5 is connected to by the central part of priming valve 40
Points 42 and the annular space 56 that defines of the inner surface 45 of piston wall 48.This annular space 56 has relatively large volume, and works as
Pressure in piston chamber 4 exceedes predetermined value and when priming valve 4 has to serve as pop off valve, this annular space 56 allow fluid from
Piston chamber 4 relatively quickly discharges.Further note that there are on the relative side of piston chamber 4 two control members
In this embodiment of 41, it is not necessary that guide air to completely extend across the bottom of piston chamber 4 so that this embodiment is at insert
15 and bottom 13 in there is no groove the 54th, 55, this groove feature that the 54th, 55 is other embodiments.
In order to understand how priming valve 40 works, with reference to Fig. 5, Fig. 6, wherein the up stroke of piston chamber is initially filled with sky
Gas.For example, the air of piston chamber 4 is entered during this can be manufacture.
In order to operation equipment 1 distribute liquid it may first have to remove these air.Therefore, with reference to Fig. 7, Fig. 8,
In initial downward stroke, trigger 20 is pulled and piston 5 moves down, and this have compressed the air A in piston chamber 4.Here
It should be noted that in conventional injector, even in some conventional injector using precompression valve, the unlatching pressure of outlet valve
Power is substantially relatively low.Therefore, in such conventional injector, by producing in injector engine internal merely with air
Pressure starts what injector was relatively easy to.When this air is sufficiently pressurized to overcome the less high unlatching of outlet valve
During pressure, air can leave injector by nozzle.
The injector of these routines has the unlatching pressure of 1.5 bars or less approx in its precompression valve or outlet valve
Power, and thus open valve by compressed air and be generally not problem.But, as at above-cited WO 2014/074654 Al
Described in, in order to subtly and accurately control liquid droplet or foam beads wherein leave buffering precommpression injector
Output pressure band, use and there is much higher pressure of opening (such as, for example from 2.5 bars to 4 bars, or even 5 bars or more mistake
Bar) dome valve or outlet valve be favourable.Utilize and so high open pressure, discharge whole air and and then start injection
Device be difficulty especially in the case that there is the not compressible inner passage of many and space.It should be noted that
No matter whether buffer exists, and this problem all exists；This problem is purely because that the high unlatching pressure of pre-compression outlet valve is led
Cause.
Certainly, it is possible by press down on piston 5 carrying out compression piston room volume.But, compression is likely to be present in slow
Rush other inner passages various in precommpression injector or non-buffered precommpression injector and pipeline is impossible.Due to this
Individual reason, can discharge from injector in order to ensure air as much as possible, have single priming valve system be desired or
Optimal.Next this will be described.
With reference to Fig. 7, when trigger 20 is pulled and piston 5 moves down, air quilt at the 13s, bottom of piston chamber 4
Compression, as directed.Actuation part 46 when piston 5 moves down always, on the bottom being arranged on piston 5 of priming valve 40
Engage with the prominent control member 41 in bottom 13 from piston chamber 4.This causes and is forced through control member 41 and is applied to from housing 8
Annular edge at the bottom of priming valve 40, along the inner face of 46, is illustrated in detail in as being exaggerated in figure 8 and figure 10.Activate
This promotion of part 46 or displacement cause the outer edge zone of the hermetic unit 44 forming priming valve 40 to move inward, thus permit
The aperture 50 from piston 5 escapes around its side to be permitted air.Then this air flows through encirclement piston 5 and with top seal
The space that portion 38 and lower seal portion 38 are boundary, and flow out finally by the opening 52 in housing 8, return to liquid in container 3
Headroom 53 above body L.
In the alternative embodiment that figure 12 illustrates, when the piston 5 of carrying priming valve 40 is pushed down on always
During with bonding operation component 41, this formation actuation part 46 causing priming valve 40 and (further out) hermetic unit 44
Inside (towards its center) displacement slightly of outer edge portion.By this way, air is allowed to around hermetic unit
In 44 annular spaces 56 escaping into piston 5.The air escaping therefrom can be flowed and the 50th, be surrounded the sky of piston 5 by aperture
Between 51 and housing 8 in opening 52.By this way, air can back in reservoir and form reservoir 3
In the part of headroom 53.
As mentioned above, when container 3 isDuring the container of type, the ventilation of the inside of container 3 is at distribution liquid
It is unnecessary during body.But, the dispensing head of the present invention or injector engine 2 can also make with conventional one-wall vessel combination
With.In this case, when the liquid L from container 3 is allocated, the air of similar volume must be introduced in container in case
Form negative pressure.For this purpose, ventilation orifice 66 can be formed at (Figure 13) in housing 8.For start-up function, ventilation orifice 66
Should be arranged to higher than reflux opening 52 in the housing, because when piston 5 is in its at the end of its stroke, in piston chamber 4
When at its lowermost position, it is necessary to expose ventilation orifice 66.During the upwards motion or induction stroke of piston 5, the top of piston 5
Sealing 38 passes through ventilation orifice 66, and then this ventilation orifice 66 is because it is surrounded by top seal portion 38 and lower seal portion 39
And become and atmospheric environment isolation.During the downward stroke or pressurization stroke of piston 5, once top seal portion 38 passes through, logical
Wind opening 66 becomes again to expose, and air can be drawn onto in container 3 to compensate the liquid having been drained off.
As described above, outlet valve 7 is precompression valve.In the embodiment shown in the drawing, pre-compression outlet valve 7 is dome valve.
This dome valve 7 includes the sleeve 57 surrounding actual dome 58.Sleeve 57 is contained in the hole 59 at the top of housing 8.Dome valve 7
Supported by the supporting member 60 with valve 7 with substantially the same configuration, and this supporting member 60 is used for preventing dome 58 to be forced
Enter " reverse " state, dome 58 " can not overturn " state from this and recover.Little space 61 is maintained at the dome 58 of valve 7 and props up
Between the similar dome-shaped part 62 of support component 60.In order to prevent the air in this space 61 be caught in and affect dome 58
Motion, provides ventilation orifice 63.Lid 64 is engaged in supporting member 60, to prevent the inside and around atmosphere of equipment 1.
Dome 58 seals against ring-shaped valve seats 65, and this ring-shaped valve seats 65 surrounds the exit opening 29 at the top of sliding part 18.Outlet valve
7th, supporting member 60 and cap 64 constitute outlet valve assembly 47.
As indicated above, offer has than conventional dome more binary behavior (more binary behavior)
Dome valve is desired.This is realized by the more instant opening and closing of dome, wherein opens pressure and pass at dome
Close and there is on pressure difference little as far as possible.As shown in Figure 19, when dome outlet valve 7 is in the closed position, dome 58
Bottom seals against valve seat 65.Therefore, any liquid in buffer not may pass through the precompression valve of closedown, because the pressure of liquid
Power is not sufficiently high, i.e. PLiquid<POpen.Under higher fluid pressure, as shown in Figure 20, outlet valve 7 is opened.Exceed and claimed
For opening pressure or opening the minimum of pressure and open pressure, liquid may pass through shape between the lower surface and valve seat 65 of dome 58
Become opening, as in Figure 20 by shown in arrow.
It has been found that at the diameter D of valve seat 65Seat, dome valve diameter DDomeAnd there is between hysteresis correlation, delayed
Effect refers to the difference opening between pressure and closing presure of dome valve in this context.It is apparent that dome valve diameter DDomeNecessary
Equal to or more than valve-seat diameter DSeatTo guarantee suitably to seal.Difference diametrically adds hysteresis, thus makes dome valve
Open pressure and be higher than closing presure.This is not necessarily needs in many circumstances, and it is therefore desirable for makes difference diametrically to the greatest extent
Possibility is little and does not affect sealing.
As shown in Figure 19, the dome 58 of valve 7 is stressed and therefore opens valve 7 when it is placed on valve seat 65 needs
Apply even more big tension force, because dome 58 is even farther from its natural laying state under the open mode of Figure 20.Change
Sentence is talked about, and under the closed mode shown in Figure 19, the dome 58 of outlet valve 7 has been prestressed, and naturally places away from it
State, or bend completely.This is due to the existence of valve seat 65.
With continued reference to Figure 19, it can readily be seen that, (which is the thinnest of whole outlet valve 7 at the center of the dome 58 of valve 7
Part) place has a kind of center ring, this center ring is almost flat circle, but is not circle flat completely.Permissible
Being readily seen from, when moving towards the sleeve 57 of dome valve or vertical structural support away from center, dome valve thickness is (i.e. thin
Film thickness) become much larger.This allows the circular portion 67 (the actually circular portion of spherical surface) at only center to bend up and down
To open and close dome valve, thicker portion 68-substantially not those parts above sealing-then seldom mobile,
If these occur.In fact, when dome valve 7 is opened, potential energy and tension force are stored in those thicker parts
In 68, those thicker parts 68 include the external rings near vertical sleeve 57 of dome valve 7.
In an exemplary embodiment of the present invention, there is different mode Lai Cong centers start to change film thickness and edge
Radius and change film thickness.For those, there is the injector of direct ability to function, target be minimize hysteresis and
Implement more binary ground and open and close dome valve rapidly, in order to once user stops spraying, prevent any kind of
Fall.The minimum of this hysteresis is typically material behavior.In other words, every kind of different material will have for dome valve 7
The optimal model of maximum gauge of the external rings 68 when it is opened by the minimum thickness of the part 67 of bending with for not bending
Enclose.
Thus, it is conceived to such change, Figure 21 to Figure 24 shows each of dome valve center 67 and dome valve edge 68
Plant exemplary thickness profile.Figure 22 and Figure 24 shows the dome valve 7 when opening, and Figure 21 and Figure 23 illustrates and be fully disposed in seat
Dome valve during closedown on 65.Figure 21 and Figure 22 shows the dome thinner than Figure 19 and Figure 20, therefore when it reaches sleeve 57
Shi Bianhua is less, although its slight variation and really become thicker there.On the other hand, Figure 23 and Figure 24 shows and schemes
21 conceptions of species relative with Figure 22.In Figure 23 and Figure 24, dome valve 7 is very thin at 67s, center, and then with
The center of moving away from gradually thickening.Have on thickness significantly from center to the radius arriving near the external boundary of valve seat 65
Change.Film 57 becomes increasingly thicker from outer ring position to sleeve, as in Figure 23 and Figure 24 it can be seen that wherein at sleeve
Near 57, film is very thick.
Use in these illustrative configuration which depend on the type of material of the dome valve wherein expecting to open.Thick
Difference (D between the diameter of degree profile and diameter and dome valve and the diameter of valve seat 65Dome-DSeat, retouched as explained above with Figure 19
State) be usually material distinctive.According to be expected to be useful in valve material (such as, for example polypropylene, polyethylene, polyamide and
POM) suitable thickness and diameter difference will be needed in each exemplary of the present invention.As noted and such as scheming
Shown in 19 to Figure 24, all these targets is to produce to have the behavior of more binary and therefore having and more immediately beat
Open and close dome valve, wherein has difference little as far as possible in opening pressure and closing presure.
Figure 14 to Figure 18 shows the alternative embodiment of the fluid distribution equipment 101 of the present invention.Alternative at this
Equipment 101 in, buffer 119 is not arranged in sliding part, but is fixed to housing 108 on the contrary.Buffer 119 is arranged in frame
In frame part 118, this frame part 118 is attached to housing 108 at the bottom of housing 108.Frame part 118 includes for connecing
Receiving the tubular portion 111 of dip-tube 169, this tubular portion 111 also defines towards the entrance opening 112 below piston chamber 104
Access road 170.Entrance opening 112 is closed by inlet valve 116 again.By including the actuating mechanism of trigger 120, piston
105 is reciprocal moveable in piston chamber 104.This actuating mechanism is at the WO of application earlier 2011/139383 of applicant
Al is described in detail.In this embodiment, buffer 119 not straight line is between piston chamber 104 and outlet valve 107.
Therefore, flowing be there is no need by piston 105 for liquid to be allocated.But, piston 105 forces liquid through exit passageway
130, this exit passageway 130 connects with buffer 119 and this exit passageway 130 is closed by check-valves 131.Other outlet is led to
Road 171 extends towards outlet valve 107 from buffer 119 on piston chamber 104 side.After by outlet valve 107, liquid flowing is logical
Cross passage 149 and reach nozzle 106.
This alternative embodiment of fluid distribution equipment 101 can use mutually similar with the first embodiment (Figure 16)
The single priming valve 140 of type.Here again, single operation component 141 is prominent to engage actuating from the bottom 113 of piston chamber
Part 146 simultaneously makes hermetic unit 144 deform.After by priming valve 140, air is by the 150th, housing 108, aperture in piston
Wall in opening 152 escape, and flow into (Figure 17) in headroom 153.
When the alternative embodiment of equipment 101 is applied in combination with conventional one-wall vessel, as the first embodiment party
Case is the same, and ventilation orifice 166 can be formed in the wall of housing (Figure 18) at the horizontal plane high compared with dynamic opening 152.This permits
Permitted surrounding air to be inhaled into after pressurization stroke in container 103.
Description given above and accompanying drawing are intended to only in an illustrative manner and are not intended to limit by any way the present invention,
Unless be illustrated in the following claims.Particular, it is to be noted that those skilled in the art can combine easily
Each technical elements of described various exemplary.
Claims (23)
1. a fluid distribution equipment, comprising:
-piston chamber；
-piston, its room in described piston chamber is moveable, to pressurize liquid to be allocated；
-nozzle, it has the handling capacity defining, for the described liquid of distribution；
-outlet valve, it has the minimum defining and opens pressure, is arranged between described piston chamber and described nozzle；And
-priming valve, it is used for starting described equipment；
It is characterized in that, described priming valve is mechanically exercisable and is arranged on described piston or in described piston.
2. fluid distribution equipment according to claim 1, is additionally included in the control member in described piston chamber, described operation
Component be arranged to when described moveable piston close to its stroke when terminating or be at the end of its stroke by described
Dynamic valve moves to open position from closed position.
3. fluid distribution equipment according to claim 2, wherein said control member highlights from the end wall of described piston chamber.
4. the fluid distribution equipment according to Claims 2 or 3, also includes multiple control member.
5. the fluid distribution equipment according to any one in aforementioned claim, wherein said priming valve includes hermetic unit
And actuation part, the aperture in the described piston of described hermetic unit closing, described actuation part is connected to described hermetic unit simultaneously
And be arranged to coordinate with described control member.
6. fluid distribution equipment according to claim 5, wherein when described actuation part is engaged by described control member,
Described hermetic unit is deformable together with described actuation part.
7. the fluid distribution equipment according to any one in aforementioned claim, the end wall of wherein said piston chamber and/or
Described piston includes the air flowing access towards described priming valve.
8. the fluid distribution equipment according to any one in aforementioned claim, wherein said priming valve is arranged to when described
Pressure in piston chamber biases towards open position when exceeding predetermined value.
9. the fluid distribution equipment according to claim 5 and 8, wherein said hermetic unit is away from the end wall of described piston chamber
Orientation.
10. the fluid distribution equipment according to any one in claim 1 to 7, wherein said priming valve is arranged through
Pressure in described piston chamber is towards closed position.
11. fluid distribution equipments according to claim 5 and 10, wherein said hermetic unit is towards the end of described piston chamber
Wall orients.
12. fluid distribution equipments according to any one in aforementioned claim, wherein said piston chamber is cylindrical,
Described piston has circular periphery, and described priming valve is annular, and the described hermetic unit of described priming valve is by described
The outer peripheral edge portion of dynamic valve is formed.
13. fluid distribution equipments according to claim 12, wherein said actuation part includes same with described hermetic unit
The heart and the annular edge edge with the diameter less than described hermetic unit.
Fluid distribution equipment described in 14. according to Claim 8 or 9 and 12 or 13, wherein said hermetic unit and described actuating
Part has substantial parallel orientation.
15. fluid distribution equipment, wherein said hermetic unit and the described causes according to claim 10 or 11 and 12 or 13
Dynamic part has generally contrary orientation.
16. fluid distribution equipments according to any one in aforementioned claim, are additionally included in the sidewall of described piston chamber
In reflux opening, wherein said piston includes the first perimeter and the second perimeter, described first peripheral sealing
Portion is for sealing the part between described piston and piston chamber's end wall of described piston chamber, described second perimeter and institute
State the first perimeter to be spaced apart so that when described piston is at the end of its stroke or close at the end of its stroke,
Described reflux opening is positioned between described first perimeter and described second perimeter.
17. fluid distribution equipments according to claim 16, are additionally included in the ventilation in the described sidewall of described piston chamber
Opening, wherein when described piston is at the end of its stroke or close at the end of its stroke, described first perimeter
With described second perimeter is positioned between described ventilation orifice and described piston chamber end wall.
18. according to the fluid distribution equipment as described in the preamble of any one in aforementioned claim or claim 1, wherein
Described outlet valve is configured to minimize it and opens the difference between pressure and its closing presure.
19. fluid distribution equipments according to claim 18, wherein said outlet valve includes dome, and wherein said circle
Top has the rigidity changing in radial directions.
20. fluid distribution equipments according to claim 19, wherein said dome valve has outer rigid portion and encirclement
The inner flexible portion at its center.
21. fluid distribution equipments according to claim 20, wherein said dome valve is in described inner flexible portion
The thinnest, there is radius R1, and when radius increaseds to over R1Shi Suoshu dome valve becomes thicker.
22. fluid distribution equipments according to any one in aforementioned claim, also include being arranged in described piston chamber and
Buffer between described outlet valve.
23. fluid distribution equipments according to any one in aforementioned claim, also include for liquid to be allocated
Container, described container is in fluid communication with described piston chamber by inlet valve.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461945092P | 2014-02-26 | 2014-02-26 | |
| US61/945,092 | 2014-02-26 | ||
| PCT/EP2015/054101 WO2015128446A1 (en) | 2014-02-26 | 2015-02-26 | Liquid dispensing device having a pre-compression outlet valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106102930A true CN106102930A (en) | 2016-11-09 |
| CN106102930B CN106102930B (en) | 2020-02-21 |
Family
ID=52589405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580008680.4A Active CN106102930B (en) | 2014-02-26 | 2015-02-26 | Liquid dispensing apparatus with pre-compressed outlet valve |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US10562053B2 (en) |
| EP (1) | EP3110560B1 (en) |
| JP (1) | JP6567540B2 (en) |
| CN (1) | CN106102930B (en) |
| AU (2) | AU2015222087A1 (en) |
| BR (1) | BR112016019706B1 (en) |
| ES (1) | ES2793900T3 (en) |
| MX (1) | MX2016009568A (en) |
| PL (1) | PL3110560T3 (en) |
| RU (1) | RU2685141C2 (en) |
| WO (1) | WO2015128446A1 (en) |
| ZA (1) | ZA201605141B (en) |
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|---|---|---|---|---|
| CN110913996A (en) * | 2017-05-01 | 2020-03-24 | 分配技术有限公司 | Apparatus, system and method for dispensing liquid from a container |
| CN113042245A (en) * | 2021-03-09 | 2021-06-29 | 宁波圣捷喷雾泵有限公司 | Spray gun |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11519394B2 (en) * | 2019-06-25 | 2022-12-06 | The Procter & Gamble Company | Buffered pump system |
| KR102448041B1 (en) * | 2020-09-11 | 2022-10-07 | 주식회사 케이알 | Spray apparatus |
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- 2015-02-26 JP JP2016553404A patent/JP6567540B2/en active Active
- 2015-02-26 MX MX2016009568A patent/MX2016009568A/en unknown
- 2015-02-26 BR BR112016019706-2A patent/BR112016019706B1/en active IP Right Grant
- 2015-02-26 CN CN201580008680.4A patent/CN106102930B/en active Active
- 2015-02-26 US US15/112,675 patent/US10562053B2/en active Active
- 2015-02-26 RU RU2016137948A patent/RU2685141C2/en active
- 2015-02-26 AU AU2015222087A patent/AU2015222087A1/en not_active Abandoned
- 2015-02-26 PL PL15706486T patent/PL3110560T3/en unknown
- 2015-02-26 WO PCT/EP2015/054101 patent/WO2015128446A1/en active Application Filing
- 2015-02-26 ES ES15706486T patent/ES2793900T3/en active Active
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2016
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913996A (en) * | 2017-05-01 | 2020-03-24 | 分配技术有限公司 | Apparatus, system and method for dispensing liquid from a container |
| CN113042245A (en) * | 2021-03-09 | 2021-06-29 | 宁波圣捷喷雾泵有限公司 | Spray gun |
| CN113042245B (en) * | 2021-03-09 | 2022-05-17 | 宁波圣捷喷雾泵有限公司 | Spray gun |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170072416A1 (en) | 2017-03-16 |
| AU2019253880B2 (en) | 2020-12-10 |
| WO2015128446A1 (en) | 2015-09-03 |
| US10562053B2 (en) | 2020-02-18 |
| PL3110560T3 (en) | 2020-11-16 |
| ES2793900T3 (en) | 2020-11-17 |
| JP6567540B2 (en) | 2019-08-28 |
| CN106102930B (en) | 2020-02-21 |
| RU2685141C2 (en) | 2019-04-16 |
| JP2017512629A (en) | 2017-05-25 |
| AU2015222087A1 (en) | 2016-08-04 |
| RU2016137948A (en) | 2018-03-27 |
| EP3110560A1 (en) | 2017-01-04 |
| RU2016137948A3 (en) | 2018-07-27 |
| ZA201605141B (en) | 2023-06-28 |
| AU2019253880A1 (en) | 2019-11-14 |
| BR112016019706A8 (en) | 2021-03-16 |
| MX2016009568A (en) | 2016-11-09 |
| EP3110560B1 (en) | 2020-04-22 |
| BR112016019706B1 (en) | 2021-11-23 |
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